Four-horse hitch



April 24, 1928. I 1,667,372

, vs. w. CADY FQUR-HORSE HITCH Filed Dec.-4, 1924 2 Sheets-Sheet 1 ii I nv filer/nan y S. W. CADY FOUR-HORSE HITCH April 24, 1928.

Filed Dec. 4, 1924 2 Shets-Sheet 2 Patented Apr. 24, 192s. d 1,667,372

UNITED STATES J SHERMAN w. oAnY, onHAMIL Ton, oivranro, CANADA, Assreivongny MESNE As- SIGNMENTS, To INTERNATIONAL HARVESTER COMPANY, OF CHICAGO; ILLINOIS. "A CORPORATIONOF NEW JERSEY. 1 I? a FOUR-HORS Hrr 011.

Application filed December 4; 1924. 'Serial in). 752,793 I Thisinvention relates to draft appliances bracket 18. Each end of the main equalizer for cultivators and more particularly 1 to bar, or member 16,.sup'ports a draft ooimect- 1 wheeled CHltiVEICOIS of .the kind-having the ing and transmitting organization, and, as tool carrying means suspended from the both of these are identical in structure, only 5 frame and surrounding each wheel. a one of them will bedescribedin detail. gThe The objects of the invention are to equalize organization referred to comprises a substanlhe draft of several animals applied to the tially horizontal draft lever 19, hereafter machine and to transmit a predetermined termed a primary. draft lever, which is piv-v proportion of the draft power directly to the oted at its center on a bolt 20fon the end of w toolcarryingmeans. the main equalizer bar 16 and extends out- These main and other minor objects are wardly beyond the same inparallel, relation attained by the novel construction and ar-- thereto. To the outer end of lever 19,.there rangement of parts, or mechanical equivais connected a double, tree 21 which carries lents thereof, described more fully in the folthe usualpair of swingletrees 22' for attach- 5 lowing specification and defined in the ment of draftanimals.

' claims. Behind themain bar 1.6 and at a point ad- Referringto the accompanying drawjacent the inner ends of the primary draft i lever 19 ,there is provided on said membera Fig. 1 is a front viewof the dra-ftrigging fulcrum bracket 23 which extendsrearwardly 20 or hitch comprising the invention; 7 and serves to pivotally support a substan- Fig. 2 is a plan view thereof; tially vertical secondary draft lever 24. The

. Fig. 3 is a side view including parts of'a secondary draftlever 24: is positioned below cultivator on which the hitch is mounted; the draftmember 16 withits lower end de-.

and j pendlng toa point in advance of and sub- 4: is a plan view showing the novel stantially on levelwith the tool beams 12 draftriggingin position on a cultivator,the of the implement. The. upper end, of lever principal parts of which are shown in broken 24 is 'pivotally connected: by a link 25 with lines; b 1' the inner end of the primary. draft lever 19 In the present instance the draft device and on the lowerendof the lever 24: there is 30 comprising the invention is shown on the loosely attached a secondary equalizer bar drawings in combination with a cultivator '26, the; respective ends of which. are conofthe type for which it is especially adapted. nccted by. links 27 to: the forward ends of a b though not necessarily limited in its use to pair of implement carrying beams 12. the one type shown. The cultivator shown With the construction and arrangement 35 comprises a wheeled frame 10 from which above described it will be evident that draft there depends four hangers 11 in which there force applied to the outer end of theprimary are pivotally supported the forward ends of draft lever 19 will be transmitted in part tool carrying beams 12, between each pair of throughlink 25 as athrust to the upper end which there is interposed one of the wheels of the secondary leveri24 causing it to swing 40 of the cultivator frame ,in the manner clearly on the-fulcrum. bracket '23 and tending to shown in Fig. 4. The usual draft tongue 13 moveits lower end forwardly thus a plying is provided, the rear end of which is pivota portion ofthe draft forceto the orward ally connected to the cultivator frame in any ends of the tool beams Suitable adjust suitable manner, as at 14 (Fig. 3), and supment of the fulcrum point of secondary port for the tongue is provided by the frame lever 24 on bracket 23 and of the connecting members shown in section at 15. point of evener 26 on the lower end of lever The structure embodying the invention 24: will serve to properly proportion the force comprises a main equalizer bar 16-which is so transmitted to the character of the soil I preferably of truss construction and slightly being tilled. I i 5oarched as seen in Fig. 1. This bar is pivot- The lnventlon accordingly exempllfies an ally supported at its center on a bolt 17 exorgan zation by which a portion of the draft tending beneath the tongue and carried by a force s transmitted througha maln equalments here disclosed constitutes the preferred form of the invention it will be evident that certain variations in structure and arrangement of the parts comprising the device are possible without departure from the gist of the invention as defined in the following claims;

'hat is claimed as new is:

1. In a device of the class described, the combination of a main horizontally extendequalizer bar having a pivotal support at'its center, substantially vertical draft'levers pivoted between their ends near the respective ends of said bar,- substantially horizontal draft levers also pivoted on said lnain equalizer bar each lever being link connected to the upper ends of the respective vertical levers, secondary equalizer bars carried by the lower ends of the vertical levers and provided with means for coupling them to an implement, and draft connecting means on the horizontaldraft levels.

2. In a device of the class described, the combination of a pivoted main equalizer bar, primary draft levers pivoted on the outer portions of the equalizer bar, upright secondary draft levers also pivoted on the outer portions of said bar and angularly disposed with respect to the primary levers, link connections between the primary and secondary levers, secondary equalizer bars attached to the secondary levels at points remote from the link connections between said primary and secondary levers, draft couplings on the ends of the secondary equalizerbars, and draft hitches on the primary draft levers. v v

8. In a device of the class described, the combination of a main horizontally extendingpivotcd equalizer bar, upright draft levers pivoted between their ends near the respective ends of said bar and angularly disposed with respect thereto, means for applying the draft power to the upper ends of said levers, secondary equalizer bars 'connected to the lower ends of said levers, and means on said secondary bars for coupling them to an implement. I

4. In draft devices for earth working implements having suspended tool beams; the combination of a main horizontally positioned draft member adapted to be connected to the frame of an implement, a primary draft lever pivoted on the end of said memher and extending parallel thereto, a secondary draft lever pivoted between its ends on said draft member at a point behind the primary lever to swing in a substantially verticalplane, a link connectng the inner end of the primary lever with the upper end of the secondary lever, means on the lower end of the secondary lever for connecting it to the tool beams of an implement, and means for applying draft power to the outer end of the 'jriinary lever.

5. In a draft device for earth working implements having suspended tool beams the combination of a main horizontally positioned draft member pivoted to the frame of the implement, aprimary and a secondary draft lever each pivoted between its ends on said member with the secondary lever pivoted on a horizontal axis at right angles to the primary lever and dependingbelow said main draft member, means pivotally connecting the upper end of the secondary lever with one end of the primary lever, means on the lower end of the secondary lever for connecting it' to the tool beamsof an implement, and means for applying draft power to the other end of the primary lever.

6. In a draft appliance for wheeled cultivators having a frame and tool carrying beams; a main equalizer bar pivotally supported intermediate its ends by the cultivator and a draft transmitting organization sup-ported at each end of the equalizer bar; each draft transmitting organization comprising a 'substantiiillyhorizontal draft lever centrally pivoted on the equalizer bar, a doubletree connected to the outer end of the horizontal draft lever, a vertical draft lever pivotally supported intermediate its ends on the equalizer bar, a connection between'the upper end of the vertical draft lever and the inner end of the horizontal lever, and connections between the lower end of the vertical leverand a cultivator beam.

Intestiinony whereof I afiix my signature.

SHERMAN CADY. 

